Consider how the information in section 2 of supporting document 1 could be used when assessing the risks of workers exposure to vitamin C powder

SECTION 2

Personal exposure dust measurements for workers at Mixing Vessel E charging point

Date	Worker	Total sample period	Dust level during sampling period
24/4/23	Worker 1	09.00 10.00	12 mg/m3
28/4/23	Worker 2	15.00 16.00	10 mg/m3

Particle Size Distribution Data for vitamin C powder

Particle Size (microns)	% by weight	Cumulative % by weight
<5*	5	5
5 7*	15	20
7 10*	20	40
10 15	25	65
15 30	20	85
30 50	10	95
50 100	5	100

(* Supplier information indicates this represents the respirable fraction of the vitamin C powder raw material)